SEATTLE and CHICAGO, IL, April 28, 2008 - Researchers from Dendreon Corporation (Nasdaq: DNDN) today presented preclinical data demonstrating the potential of D-3263, Dendreon’s orally bioavailable small molecule, which targets TRPM8 (a transmembrane cation channel protein), to treat benign prostatic hyperplasia (BPH). D-3263 demonstrated the ability to reduce BPH alone and in combination with finasteride, a current treatment for BPH.